The taxonomic status and identification of the deep-sea sharks of the genus Deania have been controversial mainly due to morphological similarities between some of its species. The aim of this work was to update the taxonomic status of Deania hystricosa

Deania calceus (Lowe, 1839), the bird-beak dogfish, is a dominant species in trawl and longline catches in the Rockall Trough and the slopes of the Porcupine Bank, west and north of Ireland. It is discarded because the carcass is currently of no commercial

Three elasmobranch species of the genus Deania are currently reported in NE Atlantic waters: D. calcea, D. hystricosa and D. profundorum; however, in north Spanish waters (NE Atlantic), only D. calcea and D. profundorum have been caught. Among the criteria